Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. Jon works as a "sanitation engineer" for a zoo. Every day he goes to work he feels like he is shoveling a great deal of waste and he wants to know if the amount of waste that he disposes of is greater than 1500 pounds (which is the national average according the American Zoological Review.). Assume a population standard deviation of 200 pounds. In a random sample 25 days, Jon removes an average of 1588 pounds of waste per day. With a .05 level of significance, can we conclude that the population mean amount of crap Jon disposes of per day is greater than 1500 pounds?
a. Is the sample size large enough to ensure valid inference? If you aren't sure, how would you determine whether or not the sample size was large enough)?
b. State the null and alternative (research) hypotheses.
c. Test the hypothesis using the critical value approach.
d. Test the hypothesis using the p-value approach.
Construct and interpret the 90% confidence interval
a new chewing gum has been developed that is helpful to those who want to stop smoking. if 60 percent of those people
the regression equation relating putting distance in feet and success rate percent for golfers based on 11 distances
use this calculation table for the chi-square test for goodness-of-fit to complete this
At Kelsey High School, Mrs. O'brien noted that the students were waiting too long in line for their lunches. After collecting some data, Ms. O'brien determined the mean wait time was 10 minutes.
An economist is interested in studying the incomes of consumers in a particular region. The population standard deviation is know to be $1,000. A random sample of 50 individuals resulted in an average income of $15,000.
Standard deviation of 1.4 inches. What is the probability that the average length of a steel from a sample of 36 is more than 27.65inches long?
Construct a 89% confidence interval estimate of the overall percentage of the B.C. population in favour of such a casino and what size of sample would be required to do this
a university planner is interested in determining the percentage of spring semester students who will attend summer
Fred, on the other hand, has opted to administer to his cat, Heisenberg, Dr. Zelinski's Is Your Cat Smarter Than This Rock?
At.05 level of significance, is there evidence to propose that mean life length of the batteries manufactured by this manufacturer is more than 400 hours?
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level. Give the formula for the test statistic.
The mean amount of a purchase at the Smith Hardware store is $23.50 with standard deviation of $5.00. The amounts purchased follow normal distribution.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd